High (7.7). EPSS 0.2% chance of exploitation in the next 30 days.
An Insecure Direct Object Reference (IDOR) vulnerability was identified in the `POST /v1/templates` endpoint of the Lunary API, affecting versions up to 0.8.8. This vulnerability allows authenticated users to create templates in another user's project by altering the `projectId` query parameter. The root cause of this issue is the absence of server-side validation to ensure that the authenticated user owns the specified `projectId`. The vulnerability has been addressed in version 1.9.23.
Severity
CVSS 3.0
7.7 high
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
EPSS
0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-31)